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Steven Lord

MathWorks

Last seen: Today Actif depuis 2002

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I joined The MathWorks in the Technical Support department during the summer of 2001 and transferred into the Quality Engineering department in March of 2004. I now work qualifying the core MATLAB numerical functions (PLUS, MINUS, LU, FFT, ODE45, etc.) Professional Interests: mathematics, MATLAB For assistance with MATLAB question please post to MATLAB Answers or contact Technical Support using the Contact Us link in the upper-right corner of the page instead of contacting me directly.

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Réponse apportée
Adjacency list by a “from” vector and a “to” vector
What are you hoping to do with this list? Depending on the specific operations you're looking to perform you may want to create ...

2 jours il y a | 0

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Keep underscore symbol using latex as interpreter
This text call uses _ to make x a subscript of a. text(0.25, 0.25, "Text with $a_x$ and LaTeX interpreter", Interpreter = "late...

3 jours il y a | 0

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How to use speechClient("wav2vec2.0") command
From the speechClient documentation page: "Using wav2vec 2.0 requires Deep Learning Toolbox and installing the pretrained model....

3 jours il y a | 0

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Name of Component in Simulink (out.e, out.r)
Since it has no outgoing ports, I suspect it's one of the Sinks blocks. Looking at the list and the picture on each sink block's...

3 jours il y a | 0

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How to use IgnoringFields in StructComparator?
Rather than building a StructComparator, just specify "IgnoringFields" in your IsEqualTo call. s1 = struct('a', 1, 'b', 2); s2...

3 jours il y a | 1

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Make histogram for array of datetimes
Let's make some sample dates and times. n = 10; T = datetime('today'); d = T + ... hours(randi([-24, 24], n, 1)) + ... ...

3 jours il y a | 0

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str2num is returning and empty matrix: []
Since month is a string containing the text representation of a number, you don't need to use str2num. Just call double on it. ...

4 jours il y a | 0

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Different output using mldivide with newer matlab version
We do not guarantee that the results from mldivide will be exactly the same, down to the last bit, across: different operating ...

4 jours il y a | 0

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pulling non-consistent arrays out of a structure
If you're using release R2023b or later, the resize function may be of use. Let's make some sample data. data = {(1:3).', (4:8)...

5 jours il y a | 0

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Code runs well on Windows but gets errors on Apple Silicon Mac
which cec22_test_func There is no such function in MATLAB. This is confirmed by a search of the MathWorks website, which only f...

6 jours il y a | 0

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Why readtable is not reading all my rows, it has a limit?
I believe the presence of data in P56 makes MATLAB consider rows 1 through 55 as headers. Note that detectImportOptions consider...

6 jours il y a | 2

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Matlab tool to plot 3d phase portrait
Use odeset to set the OutputFcn option to @odephas3. See the ballode or orbitode example files for a demonstration of how to use...

7 jours il y a | 0

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My function doesn't append to it's list
Your recursive calls only call your function with one output argument, so the modified second output argument is not returned fr...

9 jours il y a | 0

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How can I solve this implicit function in MatLab?
Let's take a simpler example and call fimplicit with an output argument, the handle of the graphics object that fimplicit plots....

9 jours il y a | 1

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Dot indexing is not supported for variables of this type
If you are attempting to compile code using MATLAB Compiler that calls load to load an object from a MAT-file and there is no in...

9 jours il y a | 0

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Locate and syncronize timestamp
Rather than splitting the strings representing dates and times into vectors of numbers and trying to perform date and time arith...

10 jours il y a | 0

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I am trying to reinvent wheels of fft. But the recursive function of mine seems to be not working due to N
Why did N becomes array? Because in your recursive call: return_arr(k+1, 1) = my_fft(arr_even, N/2, k) + (cos(temp) + 1i*s...

10 jours il y a | 0

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no definition for plot3
Based on the translation of the Code Analyzer message DGM posted, it seems that somewhere in the PlotDampRoots function you assi...

11 jours il y a | 0

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Pass variable name through variable of a custome save function made error
When you call this code, what does this command show? whos knee_toruqe_trainedModel If it shows nothing, try with the correct ...

11 jours il y a | 0

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Opensource matlab standalone application license requirements
Please contact the Sales department directly using this link with this licensing question.

11 jours il y a | 0

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solving non-linear ODE
This line suggests you're performing operations with symbolic variables. term1 = simplify(a - c); If so, you're probably going...

11 jours il y a | 0

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How to draw an histogram?
So you know the bin edges and the bin counts? Call histogram with 'BinEdges' and 'BinCounts' along with the vectors of bin edges...

11 jours il y a | 0

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Live Editor long display output bug. Command to remove output from Live Script?
Please send the Live Script with which you were able to reproduce this error to Technical Support directly using this link so th...

12 jours il y a | 0

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how to not violate from trnasparency in parloop? (a good replacement for "which" or "exist")
How does that variable get created in the workspace? Inside the loop or before? If it gets created inside the loop I'm not sure ...

12 jours il y a | 0

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How to install Matlab without Oracle java and use Open JDK instead?
Please see this Answers post.

12 jours il y a | 0

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Erorr when replace row's value of table in-array.
% jointTSS1{i,1}.ID(1) = jointTOSnew1{i,1}.ID(ismember(jointTOSnew1{i,1}.X,startTSS1{i,1})); You're assuming that the ismember ...

12 jours il y a | 0

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Running a function with a parameter from the command line
In general, when you are experiencing difficulties please explain what type of difficulties you're experiencing. Do you receive...

13 jours il y a | 1

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Vector with symbolic variable
If you have a symbolic variable that contains a function of another symbolic variable and you want to substitute values for that...

15 jours il y a | 1

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Parallel execution using parfeval does not modify input handle object as expected
See this documentation page for an explanation and a description of how I think you can achieve the behavior you're looking for....

15 jours il y a | 0

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I can't get the result of exact dividing
Use vpa to approximate the fraction as a decimal number. syms m n x y a b D p0 Pmn= 16*p0/(pi^2*m*n); b=2*a; w(x,y)= 1/(D*p...

16 jours il y a | 0

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